Results 1 to 10 of about 36,061 (262)

Terahertz semiconductor laser chaos. [PDF]

Nat Commun
Abstract Chaos characterized by its irregularity and high sensitivity to initial conditions finds various applications in secure optical communications, random number generations, light detection and ranging systems, etc. Semiconductor lasers serve as ideal light platforms for chaos generations owing to the advantages in on-chip ...
Liu B, Silvestri C, Zhou K, Ma X, Wu S, Li Z, Wan W, Zhang Z, Zhang Y, Peng J, Zeng H, Wang C, Brambilla M, Columbo LL, Li H.   +14 more
europepmc   +3 more sources

Highly efficient generation of GV/m-level terahertz pulses from intense femtosecond laser-foil interactions

iScience, 2022
Summary: The terahertz radiation from ultraintense laser-produced plasmas has aroused increasing attention recently as a promising approach toward strong terahertz sources.
Hong-Yi Lei, Fang-Zheng Sun, Tian-Ze Wang, Hao Chen, Dan Wang, Yan-Yu Wei, Jing-Long Ma, Guo-Qian Liao, Yu-Tong Li   +8 more
doaj   +1 more source

Focusing of inhomogeneous polarized modes of a laser waveguide dielectric resonator [PDF]

Радиофизика и электроника, 2020
Subject and Purpose. In this paper, spatial power characteristics of laser beams with inhomogeneous spatial polarization are theoretically investigated depending on whether they have moderate or sharp focusing.
A.V. Degtyarev, M.M. Dubinin, V.A. Maslov, V.S. Senyuta   +3 more
doaj   +1 more source

Investigation of Laser-Induced Periodic Surface Structures Using Synthetic Optical Holography

Nanomaterials, 2022
In this paper, the investigation of laser-induced periodic surface structures (LIPSSs) on a polycrystalline diamond substrate using synthetic optical holography (SOH) is demonstrated.
Krisztian Neutsch, Evgeny L. Gurevich, Martin R. Hofmann, Nils C. Gerhardt   +3 more
doaj   +1 more source

Bessel Terahertz Pulses from Superluminal Laser Plasma Filaments

Ultrafast Science, 2022
Terahertz radiation with a Bessel beam profile is demonstrated experimentally from a two-color laser filament in air, which is induced by tailored femtosecond laser pulses with an axicon.
Zhelin Zhang, Jiayang Zhang, Yanping Chen, Tianhao Xia, Linzheng Wang, Bonan Han, Feng He, Zhengming Sheng, Jie Zhang   +8 more
doaj   +1 more source

Collimated terahertz radiation through a laser irradiating on a T-type target

Frontiers in Physics, 2022
A scheme, applying a linearly polarized laser irradiating on a T-type target which contains a longitudinal target followed by a transverse target, is proposed to collimate the terahertz radiation.
Chong Lv, Wei Sun, Xiaona Ban, Feng Wan, Zhao Wang   +4 more
doaj   +1 more source

Terahertz Emission Enhanced by a Laser Irradiating on a T-Type Target

Applied Sciences, 2022
The generation of high field terahertz emission based on the interaction between an ultra-intense laser and solid targets has been widely studied in recent years because of its wide potential applications in biological imaging and material science. Here,
Ji Zhang, Xiaona Ban, Feng Wan, Chong Lv
doaj   +1 more source

Holography with high-power CW coherent terahertz source: optical components, imaging, and applications

Light: Advanced Manufacturing, 2022
This paper presents the results of 15 years of studies in the field of terahertz holography at the Novosibirsk free electron laser. They cover two areas: research on obtaining holographic images in the terahertz range and the use of diffractive optical ...
Yulia Choporova, Boris Knyazev, Vladimir Pavelyev   +2 more
doaj   +1 more source

Multi-Wavelength Terahertz Parametric Generator Using a Seed Laser Based on Four-Wave Mixing

Photonics, 2022
In this study, we developed a multi-wavelength terahertz-wave parametric generator that operates with only one injection seeding laser. Tunable lasers used as an injection seeder must be single-frequency oscillators, and conventional multi-wavelength ...
Sota Mine, Kodo Kawase, Kosuke Murate
doaj   +1 more source

Flowing cryogenic liquid target for terahertz wave generation

AIP Advances, 2020
Terahertz wave emission from liquids excited by intense laser pulses not only reflects the details in laser–matter interaction but also offers bright terahertz wave sources.
Yiwen E, Yuqi Cao, Fang Ling, X.-C. Zhang   +3 more
doaj   +1 more source